Phytec phyCORE-OMAP44 Series, Руководство по оборудованию

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phyCORE-OMAP44xx Part I: PCM-049/phyCORE-OMAP44xx System on Module
L-760e_1 © PHYTEC Messtechnik GmbH 2012 29
1.3 Jumpers
For configuration purposes, the phyCORE-OMAP44xx has 7 solder jumpers, some of which have been installed
prior to delivery.
Figure 5 illustrates the numbering of the solder jumper pads, while Figure 6 and Figure 7
indicate the location of the solder jumpers on the board. 5 solder jumpers are located on the top side of the
module (opposite side of connectors) and 2 solder jumpers are located on the bottom side of the module
(connector side).
Table 6 below provides a functional summary of the solder jumpers which can be changed to
adapt the phyCORE-OMAP44xx to your needs. It shows their default positions, and possible alternative positions
and functions. A detailed description of each solder jumper can be found in the applicable chapter listed in the
table.
Figure 5:
Typical Jumper Pad Numbering Scheme
If manual jumper modification is required please ensure that the board as well as surrounding components and
sockets remain undamaged while de-soldering. Overheating the board can cause the solder pads to loosen,
rendering the module inoperable. Carefully heat neighboring connections in pairs. After a few alternations,
components can be removed with the solder-iron tip. Alternatively, a hot air gun can be used to heat and loosen
the bonds.
Please pay special attention to the "TYPE" column to ensure you are using the correct type of jumper
(0 Ohms, 10 k Ohms, etc…). The jumpers are 0402 package with a 1/8 W or better power rating, while JN1 is a
resistor array (1206).